Sebastien wants to get a good read on how his users are interacting with his videos across different geographies of his target demographic. For example, it would be helpful to know what calls-to-action are driving higher clickthrough rates

Sebastien wants to get a good read on how his users are interacting with his videos across different geographies of his target demographic. For example, it would be helpful to know what calls-to-action are driving higher clickthrough rates. In which report of YouTube Analytics would he be able to access this kind of data?